The artists are looking at the blank canvas, be it digital, real, or methaphorical like a piece of stone or 3D square, and then proceed to express themselves through it. Their ideas, emotions, vision, their perception of the world.
You, my dear, do not have hold of any of it. You may have a hold on their canvas, tools of creation, sources their learned they craft on (although with self-taughts, not even that may be true), but you do not hold any of the main reasons art happenes - their soul, let's say. they do not owe that to anyone or anything.
Sorry if I sound aggressive just...the notion that society owns something so personal as art? No.